Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents

Correspondence and magazine article.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents From the Collection:

The Thorn L. Mayes Sr. papers (1920s-1980s) consist of correspondence, maps, brochures, pamphlets, articles, field books, bulletins, and other materials concerning the exploration of canyon country in Utah and Arizona.

Scope and Contents

Includes three letters, Yellowston National Park passes, map titled "1933 Flight with F. L. Maylor," and news clippings.

Scope and Contents The Knoll, Utah, 1951 Upheaval Dome, Utah, 1951 Castle Valley, Utah, 1954 The Needles, Utah, 1953 Moab, Utah, 1959 Hatch Point, Utah, 1954 Brushy Basin Wash, Utah, 1957 La Sal Junction, Utah, 1954 Harts Points, Utah, 1954 Bears Ears, Utah, 1954 ...